Which distinction best describes حَسُنَ versus حَسَنٌ?

Properties of the Six Basic Triliteral Forms: Contest, Transitivity, and Semantic Patterns

• Both are identical perfect verbs
• حَسَنٌ is a prohibitive verb
• حَسُنَ is a mīmī verbal noun
• حَسُنَ is a Karuma verb; حَسَنٌ is a noun/adjective